The stupid, thoughtless part of the OP was the implication in the title that nobody needs tourism any more.
Not having a finger in the tourism pie, I also greatly enjoyed the scarcity of certain tourists, and their big smelly buses, polluting everything in my erstwhile home of Phuket. The recovery of environment, oceans and air. and the free flow of traffic was great to behold.
However, I'm able to understand that the dearth of the tourist was (continues to be) a massive blow to the country's economy and to the millions of workers whose lives are very badly impacted by the sudden closure of their livelihoods.
It's thoughtless/selfish to imply that one persons enjoyment of a day out on the beach should lead to a permanent shutdown.